PLAYER PAGE
Ivan Weng
1150148195Cape Winelands (WCW)Personal
Main rating
| Rating | 1265.6 |
| K-factor | 36 |
| Floor | 824.1 |
| Highest | 1324.1 (2025-09-01) |
| Min/Max +/- allowed | 139 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1246.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1265.6 |
| K-factor | 36 |
| Floor | 824.1 |
| Highest | 1324.1 (2025-09-01) |
| Min/Max +/- allowed | 138.9 |
Standard rating
| Rating | 1199.1 |
| K-factor | 36 |
| Floor | 752.7 |
| Highest | 1252.7 (2025-04-01) |
| Min/Max +/- allowed | 153.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1185.6 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1199.1 |
| K-factor | 36 |
| Floor | 752.7 |
| Highest | 1252.7 (2025-04-01) |
| Min/Max +/- allowed | 153.8 |
Rapid rating
| Rating | 1330.3 |
| K-factor | 36 |
| Floor | 855.2 |
| Highest | 1355.2 (2025-09-01) |
| Min/Max +/- allowed | 132.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1310.1 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1330.3 |
| K-factor | 36 |
| Floor | 855.2 |
| Highest | 1355.2 (2025-09-01) |
| Min/Max +/- allowed | 132.9 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Cape Winelands Schools - Primary Schools Trials 1 2026 (U11 Boys) | Standard | 2026-02-14 | 2026-02-14 | Cape Winelands (WCW) | 5 | 1268.5 | 5 | 3 | 1348 | 0 | Details |
| 2 | Marie Delport Memorial 2026 (U12 Boys) | Standard | 2026-01-31 | 2026-01-31 | Cape Winelands (WCW) | 5 | 1268.5 | 5 | 2 | 1150.8 | 0 | Details |
| 3 | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Individual U11 Boys) | Rapid | 2025-12-09 | 2025-12-09 | Cape Winelands (WCW) | 5 | 1272.4 | 5 | 2.5 | 1390.5 | 0 | Details |
| 4 | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Team U11) | Rapid | 2025-12-08 | 2025-12-08 | Cape Winelands (WCW) | 5 | 1272.4 | 5 | 2 | 1247.2 | 0 | Details |
| 5 | WCSC Brian Raubenheimer Development 2025 (U11 Boys) | Rapid | 2025-11-29 | 2025-11-29 | Cape Winelands (WCW) | 5 | 1272.4 | 5 | 3 | 1357.6 | 0 | Details |
| 6 | Cape Town Chess Federation Club League 2025 (E) | Standard | 2025-08-16 | 2025-08-23 | Cape Town (WCT) | 6 | 1279 | 2 | 0 | 831 | 0 | Details |
| 7 | Paarl Boys' High School Chess Festival 2025 (Primary Schools) | Standard | 2025-10-17 | 2025-10-18 | Cape Winelands (WCW) | 6 | 1279 | 6 | 1.5 | 1136.6 | 0 | Details |
| 8 | Western Cape Schools - Top Schools 2025 (U13) | Standard | 2025-09-06 | 2025-09-07 | Overberg (WOS) | 6 | 1324.1 | 5 | 1 | 1072.1 | 0 | Details |
| 9 | Cape Winelands Top Schools 2025 (U13) | Rapid | 2025-08-23 | 2025-08-23 | Cape Winelands (WCW) | 5 | 1296.1 | 5 | 4 | 1498.8 | 0 | Details |
| 10 | Cape Winelands Schools Prestige 2025 (U11 Boys) | Standard | 2025-03-08 | 2025-03-08 | Cape Winelands (WCW) | 5 | 1289.3 | 5 | 3 | 1334.3 | 0 | Details |
| 11 | Cape Winelands Schools - Trials 1 2025 (U11 Boys) | Standard | 2025-02-22 | 2025-02-22 | Cape Winelands (WCW) | 5 | 1276.3 | 5 | 3 | 1357.5 | 0 | Details |
| 12 | Western Cape Women’s Championship 2024 (U10) | Standard | 2024-08-09 | 2024-08-09 | West Coast (WCU) | 5 | 1263.5 | 0 | 0 | 0 | 0 | Details |
| 13 | De Villiers PS Tournament 2024 (U10) | Standard | 2024-08-17 | 2024-08-17 | Cape Winelands (WCW) | 5 | 1263.5 | 5 | 3 | 1329.7 | 0 | Details |
| 14 | Cape Winelands - Top Schools 2024 (U7-U11 Mixed) | Standard | 2024-07-24 | 2024-07-24 | Cape Winelands (WCW) | 5 | 1274.3 | 5 | 2 | 1220.4 | 0 | Details |
| 15 | Robertson Strategema Chess May 2024 (U9) | Rapid | 2024-05-11 | 2024-05-11 | Cape Winelands (WCW) | 5 | 1208.9 | 5 | 4 | 1460.5 | 0 | Details |
| 16 | Western Cape PS Individuals Championship 2024 (U9 Boys) | Standard | 2024-05-04 | 2024-05-05 | West Coast (WCU) | 6 | 1208.9 | 6 | 3.5 | 1365.1 | 0 | Details |
| 17 | Brave Knights 2024 (U9) | Rapid | 2024-03-16 | 2024-03-16 | Cape Winelands (WCW) | 6 | 1177.1 | 6 | 4 | 1317.1 | 0 | Details |
| 18 | Cape Winelands Schools - Prestige 2024 (U9 Boys) | Standard | 2024-03-02 | 2024-03-02 | Cape Winelands (WCW) | 5 | 1177.1 | 5 | 2.5 | 1229.3 | 0 | Details |
| 19 | Cape Winelands Schools - PS Trials 1 2024 (U9 Boys) | Rapid | 2024-02-10 | 2024-02-10 | Cape Winelands (WCW) | 6 | 1172.6 | 6 | 3 | 1200.8 | 0 | Details |
| 20 | 2023 Western Cape Rural Cup (U10) | Standard | 2023-12-09 | 2023-12-10 | Cape Winelands (WCW) | 5 | 1212.6 | 4 | 0 | 930.2 | 0 | Details |
| 21 | Ashton Skaakmat Rapid 2023 (U9) | Rapid | 2023-11-18 | 2023-11-18 | Cape Winelands (WCW) | 6 | 1186.2 | 6 | 4 | 1354 | 0 | Details |
| 22 | Worcester Knock-Out 2023 (U9 Boys) | Rapid | 2023-10-14 | 2023-10-14 | Cape Winelands (WCW) | 6 | 1142 | 6 | 4.5 | 1404.1 | 0 | Details |
| 23 | Western Cape Closed Championship 2023 (U10) | Rapid | 2023-09-23 | 2023-09-23 | Cape Town (WCT) | 6 | 1148.3 | 6 | 2 | 1108.1 | 0 | Details |
| 24 | Western Cape PS Individuals 2023 (U9 Boys) | Standard | 2023-05-05 | 2023-05-06 | Cape Town (WCT) | 6 | 1158 | 6 | 2 | 1139 | 0 | Details |
| 25 | Steinitz Open 2023 (U10) | Rapid | 2023-05-27 | 2023-05-27 | Cape Town (WCT) | 5 | 1158 | 5 | 2 | 1107.5 | 0 | Details |
| 26 | Midas Paints Chess Cup Term 2 2023 (U8) | Rapid | 2023-04-15 | 2023-04-15 | Cape Winelands (WCW) | 5 | 1124.4 | 5 | 4.5 | 1540.1 | 0 | Details |
| 27 | Cape Town Open 2023 (Rapid) | Rapid | 2023-03-26 | 2023-03-26 | Cape Town (WCT) | 6 | 1103 | 6 | 1 | 915.3 | 0 | Details |
| 28 | Cape Winelands Schools Prestige 2023 (U9 Boys) | Standard | 2023-03-11 | 2023-03-11 | Cape Winelands (WCW) | 5 | 1103 | 5 | 3.5 | 1368.8 | 0 | Details |
| 29 | Cape Winelands Schools Chess - Trials 1 2023 (U9 Boys) | Standard | 2023-02-18 | 2023-02-18 | Cape Winelands (WCW) | 5 | 1092.4 | 3 | 1.5 | 1195.5 | 0 | Details |
| 30 | Drakenstein Pioneers Club Championship 2022 (U14) | Standard | 2022-09-20 | 2022-10-11 | Cape Winelands (WCW) | 7 | 1200 | 6 | 0 | 739.9 | 0 | Details |
Game statistics ( )
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics ()
| Games | 10 |
| Wins | 5 |
| Draws | 0 |
| Losses | 5 |
| White | 6 |
| Black | 4 |
| White wins | 3 |
| Black wins | 2 |
| Score | 5 |
| Percent | 50 |
| Dp | 0 |
| AOR | 1249.4 |
| Performance | 1249.4 |
Game statistics (History)
| Games | 149 |
| Wins | 67 |
| Draws | 10 |
| Losses | 72 |
| White | 78 |
| Black | 71 |
| White wins | 31 |
| Black wins | 36 |
| Score | 72 |
| Percent | 48.3 |
| Dp | -14.3 |
| AOR | 1249.9 |
| Performance | 1235.7 |
Rankings (Main)
| National | |
| Overall | 7503 |
| Gender | 6131 |
| Age group | 745 |
| Gender/Age | 585 |
| Provincial | |
| Overall | 2193 |
| Gender | 1708 |
| Age group | 256 |
| Gender/Age | 187 |
| Regional | |
| Overall | 313 |
| Gender | 232 |
| Age group | 35 |
| Gender/Age | 27 |
Rankings (Standard)
| National | |
| Overall | 10261 |
| Gender | 7970 |
| Age group | 1295 |
| Gender/Age | 969 |
| Provincial | |
| Overall | 2921 |
| Gender | 2162 |
| Age group | 413 |
| Gender/Age | 281 |
| Regional | |
| Overall | 454 |
| Gender | 323 |
| Age group | 66 |
| Gender/Age | 45 |
Rankings (Rapid)
| National | |
| Overall | 1486 |
| Gender | 1249 |
| Age group | 161 |
| Gender/Age | 130 |
| Provincial | |
| Overall | 692 |
| Gender | 570 |
| Age group | 84 |
| Gender/Age | 64 |
| Regional | |
| Overall | 93 |
| Gender | 73 |
| Age group | 15 |
| Gender/Age | 12 |
Rankings (Blitz)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Performance ( )
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 10 |
| Score | 5 |
| Percent | 50 |
| Aor | 1249.4 |
| Dp | 0 |
| Prat | 1249.4 |
Performance (12 months)
| Games | 48 |
| Score | 22 |
| Percent | 45.8 |
| Aor | 1295.4 |
| Dp | -35.4 |
| Prat | 1260 |
Performance (History)
| Games | 149 |
| Score | 72 |
| Percent | 48.3 |
| Aor | 1249.9 |
| Dp | -14.3 |
| Prat | 1235.7 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Brandt, T (Tyler) | 4 | 4 | 0 | Cape Winelands Schools - Prestige 2024 (U9 Boys) | Cape Winelands Schools - Primary Schools Trials 1 2026 (U11 Boys) | Details |
| Overall | 2 | Robertson, M (Marvin) | 3 | 3 | 0 | Ashton Skaakmat Rapid 2023 (U9) | Cape Winelands Schools - Trials 1 2025 (U11 Boys) | Details |
| Overall | 3 | Da Silva, N (Noah Clint) | 3 | 0 | 3 | Ashton Skaakmat Rapid 2023 (U9) | Cape Winelands Schools - Prestige 2024 (U9 Boys) | Details |
| Overall | 4 | Steenkamp, W (Willem) | 3 | 2 | 1 | 2023 Western Cape Rural Cup (U10) | Six Gun Grill Summer Sport Festival Chess Championships 2025 (Team U11) | Details |
| Overall | 5 | Small, W (Wyatt) | 2 | 2 | 0 | Worcester Knock-Out 2023 (U9 Boys) | Cape Winelands Schools - Prestige 2024 (U9 Boys) | Details |
| Standard | 1 | Brandt, T (Tyler) | 4 | 4 | 0 | Cape Winelands Schools - Prestige 2024 (U9 Boys) | Cape Winelands Schools - Primary Schools Trials 1 2026 (U11 Boys) | Details |
| Standard | 2 | Viljoen, A (Adrihan) | 2 | 2 | 0 | Cape Winelands Schools - Trials 1 2025 (U11 Boys) | Cape Winelands Schools Prestige 2025 (U11 Boys) | Details |
| Standard | 3 | Robertson, M (Marvin) | 2 | 2 | 0 | 2023 Western Cape Rural Cup (U10) | Cape Winelands Schools - Trials 1 2025 (U11 Boys) | Details |
| Standard | 4 | Kriel, D (Daniel) | 2 | 2 | 0 | Cape Winelands Schools Chess - Trials 1 2023 (U9 Boys) | Cape Winelands Schools Prestige 2023 (U9 Boys) | Details |
| Standard | 5 | Steenkamp, W (Willem) | 2 | 1 | 1 | 2023 Western Cape Rural Cup (U10) | Western Cape PS Individuals Championship 2024 (U9 Boys) | Details |
| Rapid | 1 | Da Silva, N (Noah Clint) | 2 | 0 | 2 | Ashton Skaakmat Rapid 2023 (U9) | Cape Winelands Schools - PS Trials 1 2024 (U9 Boys) | Details |